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S O V 1 642 905 3 1927 c. K. SUGI DEN SOUND REPRODUCINQ APPARATUS FiledJan. 23;. 1924 3 Sheets-Sheet 1 I r i D o 9 0 o v E H O O O O F I c c ca d Fig.1.

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Se t. 20, 1927.

. 1,642,905 c. K. SUGDEN v SOUND REPRODUCING APPARATUS Filed Jan. 23,1924 3 Sheets-Sheet 2 Invento Attorney.

Spt. '20. 1927.

c. K. SUGDEN SOUND REQPRODUCING APPARATUS Filed Jan. 23, 1924 3Sheets-Sheet 3 Inventor aim W 11 ttorlzey.

' Patented Sept; 7 1927.

UNITED souivn-nnrnonucme APPARATUS; v

' Applicationfiled iTanuary 2a, 1924, Serial No. 687,999, and in GreatBritain February 14, 1923.

This invention relates to sound-reproducing' apparatus and hasfor its obect to provide an "apparatus adapted to operate either as a phonographicsound reproduclng 5 machine or as a receiver of wireless signals.

According to the invention the sound reproducing machine is so provldedthat a Wireless receiver amplifying devlce may be substituted for thesound box or'for the sound box and the member carrying it 1n Orderthat'the horn on sound amplifier of *speaker.' 1

According to the inventlon, moreover, n

less receiving set may be installed within the interiorof thecover orlid,.which may for the purpose be provided of corresponding depth.Similarly, a wireless receiving set may alternatively be fitted orcontalned Within the cabinet of -a pedestal or likesound-reproducing.machine.

. 7 be adapted to be fitted upon the sound'r'eprotone-arm forcarryingthe sound-box may be adapted forthe removal of the tone armandfor the fitting in place of the wireless-1 amplifying device. The tonearm may for this purpose be detachably mounted by I means of a socketwith a bayonet. joint attachment and thewireless amplifying de-j vice besimilarly provided with a bayonetjoint device. Again, the tone armand'wire:

less amplifying" device may each be, pro-- 40 vided with a flange orlugs adapted to 'be engaged .bya screw down annular holding. devicefitted upon the machine, or each may, I Y be provided with a plainsleeve adapted slide. "ably to fit within a socket forming the in-- nerend of the horn or sound: amplifying, Again,fithe wirerp' 1 device ofthe machine. 7

less amplifying devlce may "be adapted 55. reproducing machine. =Thus,it may be fit "ted as an integral part of the instrument or ystructions. the machine may serve as a wlreless loud Thewirelessreceiver amplifying device may be of any desired constructlonand may {sound box i when this is not, in use. panel 2) 1sadvantageously, provided with a lunged section 12 serving to close acompartj ceiving set to a gramophoneor other sound it may; be providedas a self-contained unit ing apparatus provided according to theinvention are illustrated, by way of example,

the accompanying diagrammatic drawings in which Flgures 1, 2 and 3 arerespect1vely perspective views of differentcon- In carrying theinvention into effect as applied to gramophones of the pedestal type andaccording to the construction rep- 15 the application to soundreproducing ma-V. chines provided with an internal horn or soundamplifier and a cover or lid, a wire-- such means as-screws, fasteningdevices or clips in .order'that it may readily be re ,movedfwhennecessary. A'wireless sound amplifying devicea comprising a cylindricalor; other vform ct casing is fitted with a socket. connector, similar tothat provided ducing machinein any appropriate manner, 7 Thus,gramophones provided wlth apivoted,

uponthe soundbox d, in order that it may be mounted upon the tone arm 6in substitution for the sound box p'rovidedfor connection to flexibleleads Terminals c are which are {carried through the panels I). When thewireless receiving set is not .requiredfor use the sound amplifyingdevice hole formed inthe top plate f ofthe cabinet and servingalternatively to receive the The ment' at-the rear of the panel in whichthermionic valves may be disposed. Provisionmay be madein the lid alsofor the receptioniof theelectric batteries required for the operation ofthe wireless receiving set but these areconveniently housed in the lowerpart otthe cabinet.

j merely to replace the sound box and befitted V with correspondingmeans for connection to, V the' toneaarm or other sound box carrying.

.,In-,the constructionrepresented in Figure 2,, the panel- I) carryingthe elements comprising the wireless recelvmg set is disarPQSed in thelower part of the cabinet behind-the doors 7;. which usually cover a com7 partment adapted to, hold records. The panel is conveniently .carriedwithin a drawer i conformed to slide into and out of the cabinet as adrawer in order that the .c is conveniently received into a recess orvarious elements may be rendered accessible. The panel may, however, besecured in position by screws, clips or other fastening devices. Thesouiid amplifying devicec as before is adapted to be substituted inposition for the sound box d. The batteries are conveniently enclosedwithin-the cabinet to the rear of the panel 6 and in the drawer 2', orthey may be renderedaccessible'by a door iprovided iii-the rear ofthe-cabinet.

Similarly, in the case of sound repr'oducing apparatus having a cabinetof horizontal V rectangular form, divided by a transverse partition intotwocompartments, the sound i reproducing apparatus is disposed 111 theone compartment and the panel carrying the wirelcssreceiviiig set intheother com- 1 partment, the lower portion of which may The panel mayconveniently be 'c'overedwhen the wireless serve to receive records.

set is not in use, by a sliding or revolving u enim. a u.

According tothe-modified construction representedin Figure 3, the panel6 18 mounted in a casing y serving to receive the elements of thewireless receiving set fitted upona board 70 which serves to close thecover or lid a or to form a bottom thereto and is hinged both to thecover or lid a and to the cabinet. When the'cover or lid 6; is closedupon the board 70, the casing j gagedwith the board-7c,- Thus, when the-board in are lifted together to expose the turntable'and tone arm,'while when=the wireless receiving set is required, the board 70 andlidor cover w are first lifted together topermit the wireless soundamplifying de vice 0 to be substituted for thesound box d and the boardhis then lowered again and the cover or lid a disengaged from theretaining devices Z so that it may be raised to expose the panel I).

, It will be understood that theinvention is not limited to the detailsof construction hereinbefore described. Thus, the elements 'of thewireless receiving set may be provided as separate units not assembledon a 'panel but disposed within a'su-itable compartment or compartmentsformed in the lid or other containing casiiig; A frame aerial may beprovided wound upon or in the lid or cover orupoii a frame fixedlysecured to the cabinet, or the frame may be it mounted upon the cabinetthat when required for use it may be readily elevated;

or turned into an operative position.

the cabinet at the inner end of the internal horn or sound amplifier andthe wirless sound amplifying device be provided for reception into thesaid socket and to be secured therein.

v The wireless sound amplifying device in the construction representedin Figure 3 may be provided vitliiii a suitable casing fitted to theunder-side of the board hand be adapted, when the board 71: is inposition for the use of the,1wire1ess receiving set, to engage with asocket orv other connection fitted upon theinternal horn or soundamplifier of thelmachine. The said horn may for this purpose be providedwith a branch or: may be forked so that one bra chser ves for connectionto the tone arm and the other for connection with the sound amplifyingdevice ofthe wireless set. a 7

It will be iunderstood that the inventio is not limited to any,particular construction of sound reproducing machine or wirelessreceiving set.- Moreover, the latter may if desirable be provided as aset-capable also of transmission.

I claim:, a r A. H M

. 1. A sound reproducing apparatus compirisingin combination a singlecasingrmeans consisting of mechanism within thevsaid casing. for theproduction ofsound fron a record and comprising t a sou d box, wirelessreceivin apparatus also within the said casing and comprising. a soundamplifier, a single horn common to thesaid mechanism fortlieiproduction, of sound from a record and to the said wireless,receivingapparatus, the said sound amplifier and the said soundboxbeing adaptedto be alternatively'applied for effectiveuse on .,the saidtone arm, the said casing comprisinga recess for .the alternativereception of thesaid sound-box and the said soundamplifier,substantially as described.

1' v 2. A sound reproducingapparatuscom-.

prising in combination a single CEISlIIQIgJllQflTlS consistingofmechanism withinthe saidcasing for theproduction 'of soundwfron arice- 0rd and comprising a sound-box, wireless receiving apparatus alsowithinthe saidcasing and comprising, a sound amplifier, a siiigle horncommon to thesaid meclianismifor the production, of sound from a recordand tothe said wireless receiving apparatus, the

is aid amplifierand the saidsound-bQX being provided with socketconnectors fortheir alternative connection to the said tone arm, thesaid casing comprisinga recess for thealten' native receptionof thesaidisound-box and thei'said sound amplifier, substantially asdescribed. r -.V a

a 3. A sound. reproducing apparatus comprising in combination asiglecasing,'a cover -The tone arm of the machine may-be adapted to bedetached from a socket fitting IDOUDtGCl upon themotor-carrying plate ofA production of sound froma record and comprising a sound-box, wirelessreceiving api paratus, part of which'lies in the cover of the c saidcasing and comprising a sound amplifier,

a single horn common'to the said mechanism forthe prduction of soundfrom a record and to the said Wireless receiving apparatus, the saidamplifier and thesaid sound-box being provided with socket connectorsfor their al- 7 ternative connection to the said tone arm, the

said casing comprising a recess for the alternative reception of thesaid sound-box and the said sound amplifier, substantially as described.

4. A sound reproducing apparatus coni prising in combination a singlecasing, a cover for the said casing hinged to the casing, meansconsisting of mechanism Within the said casing for the production ofsound from a record and comprising a sound-box, Wireless receivingapparatus also Within the said casing and comprising a sound amplifier,a

support for the main part of said Wireless receiving apparatus, saidsupport being hinged at or about the same axis as that upon which thesaid cover is hinged to the said CHARLES KNEVYL sUGDEN.

